1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
6 - support ID3v2 tags in ASF files
7 - reference-counting for AVFrame and AVPacket data
8 - avconv now fails when input options are used for output file
10 - new avconv options -filter_script and -filter_complex_script, which allow a
11 filtergraph description to be read from a file
12 - uniform options syntax across all filters
13 - new interlace filter
15 - new asetpts filter (same as setpts, but for audio)
16 - new trim and atrim filters
17 - avconv -t and -ss (output-only) options are now sample-accurate when
19 - Matroska muxer can now put the index at the beginning of the file.
20 - avconv -deinterlace option removed, the yadif filter should be used instead
21 - Apple Intermediate Codec decoder
22 - Escape 130 video decoder
23 - support for slice multithreading in libavfilter
24 - VC-1 interlaced B-frame support
25 - support for WavPack muxing (raw and in Matroska)
27 - WavPack encoding through libwavpack
28 - Added the -n parameter to avconv
33 - av_basename and av_dirname
34 - adobe and limelight publisher authentication in RTMP
35 - VDPAU hardware acceleration through normal hwaccel
40 - ashowinfo audio filter
41 - 24-bit FLAC encoding
43 - deprecated the avconv -vol option. the volume filter is to be used instead.
44 - multi-channel ALAC encoding up to 7.1
45 - TAK demuxer, parser, and decoder
46 - adaptive frame-level multithreading for H.264
50 - metadata (INFO tag) support in WAV muxer
51 - support for building DLLs using MSVC
52 - remove avserver daemon mode
53 - support building on the Plan 9 operating system
54 - ffv1: support version 1.3
59 - XWD encoder and decoder
60 - Support for fragmentation in the mov/mp4 muxer
61 - ISMV (Smooth Streaming) muxer
62 - CDXL demuxer and decoder
63 - Apple ProRes encoder
64 - Sun Rasterfile Encoder
66 - ID3v2 attached pictures reading and writing
67 - WMA Lossless decoder
69 - RealAudio Lossless decoder
71 - drop support for avconv without libavfilter
72 - add libavresample audio conversion library
73 - audio filters support in libavfilter and avconv
77 - avprobe output is now standard INI or JSON. The old format can still
80 - channelsplit audio filter
81 - RTMPT protocol support
82 - iLBC encoding/decoding via libilbc
83 - Microsoft Screen 1 decoder
85 - audio channel mapping filter
86 - Microsoft ATC Screen decoder
88 - TechSmith Screen Codec 2 decoder
89 - AAC encoding via libfdk-aac
90 - Microsoft Expression Encoder Screen decoder
91 - RTMPS protocol support
92 - RTMPTS protocol support
93 - JPEG 2000 encoding support through OpenJPEG
94 - G.723.1 demuxer and decoder
95 - RTMPE protocol support
96 - RTMPTE protocol support
97 - Canopus Lossless Codec decoder
98 - avconv -shortest option is now per-output file,
99 -pass and -passlogfile are now per-output stream
101 - Microsoft Screen 2 decoder
102 - RTP depacketization of JPEG
103 - Smooth Streaming live segmenter muxer
104 - RTP packetization of JPEG
105 - Opus decoder and encoder using libopus
106 - remove -same_quant, it hasn't worked for years
107 - support for building with MSVC
118 - Automatic thread count based on detection number of (available) CPU cores
119 - Deprecate libpostproc. If desired, the switch --enable-postproc will
120 enable it but it may be removed in a later Libav release.
121 - rv34: frame-level multi-threading
122 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
128 - Flash Screen Video 2 decoder
129 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
130 - ffmpeg deprecated, added avconv, which is almost the same for now, except
131 for a few incompatible changes in the options, which will hopefully make them
132 easier to use. The changes are:
133 * The options placement is now strictly enforced! While in theory the
134 options for ffmpeg should be given in [input options] -i INPUT [output
135 options] OUTPUT order, in practice it was possible to give output options
136 before the -i and it mostly worked. Except when it didn't - the behavior was
137 a bit inconsistent. In avconv, it is not possible to mix input and output
138 options. All non-global options are reset after an input or output filename.
139 * All per-file options are now truly per-file - they apply only to the next
140 input or output file and specifying different values for different files
141 will now work properly (notably -ss and -t options).
142 * All per-stream options are now truly per-stream - it is possible to
143 specify which stream(s) should a given option apply to. See the Stream
144 specifiers section in the avconv manual for details.
145 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
146 sense that they're specified after the output filename instead of before,
147 like all other options. In avconv this irregularity is removed, all options
148 apply to the next input or output file.
149 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
150 irregular and highly confusing, they were also redundant. In avconv the -map
151 option will create new streams in the output file and map input streams to
152 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
153 each stream in the first input file.
154 * The -map option now has slightly different and more powerful syntax:
155 + Colons (':') are used to separate file index/stream type/stream index
156 instead of dots. Comma (',') is used to separate the sync stream instead
157 of colon.. This is done for consistency with other options.
158 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
159 output stream from the third input audio stream.
160 + Omitting the stream index now maps all the streams of the given type,
161 not just the first. E.g. -map 0:s creates output streams for all the
162 subtitle streams in the first input file.
163 + Since -map can now match multiple streams, negative mappings were
164 introduced. Negative mappings disable some streams from an already
165 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
166 all the stream in the first input file, except for the second audio
168 * There is a new option -c (or -codec) for choosing the decoder/encoder to
169 use, which allows to precisely specify target stream(s) consistently with
170 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
171 libvorbis sets the codec for the first audio stream and -c copy copies all
172 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
174 * It is now possible to precisely specify which stream should an AVOption
175 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
176 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
177 syntax is deprecated and will stop working soon.
178 * -map_chapters now takes only an input file index and applies to the next
179 output file. This is consistent with how all the other options work.
180 * -map_metadata now takes only an input metadata specifier and applies to
181 the next output file. Output metadata specifier is now part of the option
182 name, similarly to the AVOptions/map/codec feature above.
183 * -metadata can now be used to set metadata on streams and chapters, e.g.
184 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
185 This made -vlang/-alang/-slang options redundant, so they were removed.
186 * -qscale option now uses stream specifiers and applies to all streams, not
187 just video. I.e. plain -qscale number would now apply to all streams. To get
188 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
189 and -aq is now an alias for -q:a.
190 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
191 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
192 * -itsscale option now uses stream specifiers, so its argument is only the
194 * -intra option was removed, use -g 0 for the same effect.
195 * -psnr option was removed, use -flags +psnr for the same effect.
196 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
197 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
198 * -vtag/-atag/-stag options are now aliases to the new -tag option.
200 - Windows Media Image decoder
204 - libcdio-paranoia input device for audio CD grabbing
206 - Apple ProRes decoder
207 - CELT in Ogg demuxing
208 - VC-1 interlaced decoding
209 - lut, lutrgb, and lutyuv filters
212 - Speex encoding via libspeex
213 - 4:2:2 H.264 decoding support
214 - 4:2:2 and 4:4:4 H.264 encoding with libx264
215 - Pulseaudio input device
216 - replacement Indeo 3 decoder
217 - TLS/SSL and HTTPS protocol support
218 - AVOptions API rewritten and documented
219 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
220 AVCodecContext deprecated. Codec private options should be used instead.
221 - Properly working defaults in libx264 wrapper, support for native presets.
222 - Encrypted OMA files support
223 - Discworld II BMV decoding support
225 - OS X Video Decoder Acceleration (VDA) support
226 - CRI ADX audio format muxer and demuxer
227 - Playstation Portable PMP format demuxer
228 - PCM format support in OMA demuxer
230 - Dxtory capture format decoder
231 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
233 - Simple segmenting muxer
240 - E-AC-3 audio encoder
241 - ac3enc: add channel coupling support
242 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
243 - H.264/MPEG frame-level multithreading
244 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
245 - 4:4:4 H.264 decoding support
246 - 10-bit H.264 optimizations for x86
247 - bump libswscale for recently reported ABI break
252 - VP8 frame-level multithreading
253 - NEON optimizations for VP8
254 - removed a lot of deprecated API cruft
255 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
257 - SMPTE 302M AES3 audio decoder
258 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
259 - 9bit and 10bit per sample support in the H.264 decoder
264 - WebM support in Matroska de/muxer
265 - low overhead Ogg muxing
267 - VP8 de/encoding via libvpx
268 - Demuxer for On2's IVF format
269 - Pictor/PC Paint decoder
271 - libfaad2 wrapper removed
272 - DTS-ES extension (XCh) decoding support
274 - RTSP tunneling over HTTP
275 - RTP depacketization of SVQ3
276 - -strict inofficial replaced by -strict unofficial
277 - ffplay -exitonkeydown and -exitonmousedown options added
278 - native GSM / GSM MS decoder
279 - RTP depacketization of QDM2
280 - ANSI/ASCII art playback system
281 - Lego Mindstorms RSO de/muxer
282 - SubRip subtitle file muxer and demuxer
283 - Chinese AVS encoding via libxavs
284 - ffprobe -show_packets option added
285 - RTP packetization of Theora and Vorbis
286 - RTP depacketization of MP4A-LATM
287 - RTP packetization and depacketization of VP8
289 - Apple HTTP Live Streaming demuxer
292 - G.722 ADPCM audio encoder/decoder
295 - frei0r wrapper filter
296 - change crop filter syntax to width:height:x:y
297 - make the crop filter accept parametric expressions
298 - make ffprobe accept AVFormatContext options
301 - Demuxer for Leitch/Harris' VR native stream format (LXF)
302 - RTP depacketization of the X-QT QuickTime format
303 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
305 - ffmpeg -crop* options removed
306 - transpose filter added
307 - ffmpeg -force_key_frames option added
308 - demuxer for receiving raw rtp:// URLs without an SDP description
309 - single stream LATM/LOAS decoder
310 - setpts filter added
311 - Win64 support for optimized x86 assembly functions
312 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
313 - ASS subtitle encoder and decoder
314 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
315 - overlay filter added
316 - rename aspect filter to setdar, and pixelaspect to setsar
318 - Mobotix .mxg demuxer
319 - frei0r source added
320 - hqdn3d filter added
321 - RTP depacketization of QCELP
323 - gradfun filter added
325 - replace the ocv_smooth filter with a more generic ocv filter
326 - Windows Televison (WTV) demuxer
327 - FFmpeg metadata format muxer and demuxer
328 - SubRip (srt) subtitle decoder
329 - floating-point AC-3 encoder added
331 - ffmpeg -copytb option added
333 - Wing Commander IV movies decoder added
335 - Bink version 'b' audio and video decoder
336 - Bitmap Brothers JV playback system
337 - Apple HTTP Live Streaming protocol handler
338 - sndio support for playback and record
339 - Linux framebuffer input device added
340 - Chronomaster DFA decoder
341 - Mobotix MxPEG decoder
342 - AAC encoding via libvo-aacenc
343 - AMR-WB encoding via libvo-amrwbenc
345 - fieldorder video filter added
350 - PB-frame decoding for H.263
351 - deprecated vhook subsystem removed
352 - deprecated old scaler removed
354 - Alpha channel scaler
356 - RTP packetization of H.263
357 - RTP packetization of AMR
358 - RTP depacketization of Vorbis
359 - CorePNG decoding support
360 - Cook multichannel decoding support
361 - introduced avlanguage helpers in libavformat
362 - 8088flex TMV demuxer and decoder
363 - per-stream language-tags extraction in asfdec
364 - V210 decoder and encoder
365 - remaining GPL parts in AC-3 decoder converted to LGPL
367 - SoX native format muxer and demuxer
368 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
370 - Electronic Arts Madcow decoder
371 - DivX (XSUB) subtitle encoder
372 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
373 - experimental AAC encoder
374 - RTP depacketization of ASF and RTSP from WMS servers
375 - RTMP support in libavformat
376 - noX handling for OPT_BOOL X options
378 - IEC-61937 compatible Muxer
380 - Bluray (PGS) subtitle decoder
381 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
383 - Core Audio Format demuxer
385 - MD STUDIO audio demuxer
386 - RF64 support in WAV demuxer
387 - MPEG-4 Audio Lossless Coding (ALS) decoder
388 - -formats option split into -formats, -codecs, -bsfs, and -protocols
390 - CDG demuxer and decoder
392 - Auravision Aura 1 and 2 decoders
393 - Deluxe Paint Animation playback system
395 - Adobe Filmstrip muxer and demuxer
396 - RTP depacketization of H.263
397 - Bink demuxer and audio/video decoders
398 - enable symbol versioning by default for linkers that support it
399 - IFF PBM/ILBM bitmap decoder
402 - RTP depacketization of AMR
408 - Kega Game Video (KGV1) decoder
409 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
410 - RTP depacketization of Theora
411 - HTTP Digest authentication
412 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
413 - Psygnosis YOP demuxer and video decoder
414 - spectral extension support in the E-AC-3 decoder
415 - unsharp video filter
416 - RTP hinting in the mov/3gp/mp4 muxer
417 - Dirac in Ogg demuxing
418 - seek to keyframes in Ogg
419 - 4:2:2 and 4:4:4 Theora decoding
420 - 35% faster VP3/Theora decoding
421 - faster AAC decoding
422 - faster H.264 decoding
423 - RealAudio 1.0 (14.4K) encoder
428 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
429 - TechSmith Camtasia (TSCC) video decoder
430 - IBM Ultimotion (ULTI) video decoder
431 - Sierra Online audio file demuxer and decoder
432 - Apple QuickDraw (qdrw) video decoder
433 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
434 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
435 - Miro VideoXL (VIXL) video decoder
436 - H.261 video encoder
438 - Nullsoft Video (NSV) file demuxer
439 - Shorten audio decoder
441 - Apple Lossless Audio Codec (ALAC) decoder
442 - Winnov WNV1 video decoder
443 - Autodesk Animator Studio Codec (AASC) decoder
444 - Indeo 2 video decoder
445 - Fraps FPS1 video decoder
446 - Snow video encoder/decoder
447 - Sonic audio encoder/decoder
448 - Vorbis audio decoder
449 - Macromedia ADPCM decoder
450 - Duck TrueMotion 2 video decoder
451 - support for decoding FLX and DTA extensions in FLIC files
452 - H.264 custom quantization matrices support
453 - ffserver fixed, it should now be usable again
455 - Real Cooker audio decoder
456 - TrueSpeech audio decoder
457 - WMA2 audio decoder fixed, now all files should play correctly
458 - RealAudio 14.4 and 28.8 decoders fixed
460 - build system improvements
461 - tabs and trailing whitespace removed from the codebase
462 - CamStudio video decoder
463 - AIFF/AIFF-C audio format, encoding and decoding
464 - ADTS AAC file reading and writing
465 - Creative VOC file reading and writing
466 - American Laser Games multimedia (*.mm) playback system
467 - Zip Motion Blocks Video decoder
468 - improved Theora/VP3 decoder
469 - True Audio (TTA) decoder
470 - AVS demuxer and video decoder
472 - Smacker demuxer and decoder
473 - NuppelVideo/MythTV demuxer and RTjpeg decoder
475 - MPEG-2 intra VLC support
476 - MPEG-2 4:2:2 encoder
477 - Flash Screen Video decoder
479 - Chinese AVS decoder
482 - VC-1/WMV3/WMV9 video decoder
485 - VMware video decoder
488 - WavPack lossless audio decoder
489 - Targa (.TGA) picture decoder
490 - Vorbis audio encoder
491 - Delphine Software .cin demuxer/audio and video decoder
492 - Tiertex .seq demuxer/video decoder
494 - TIFF picture encoder and decoder
495 - GIF picture decoder
496 - Intel Music Coder decoder
497 - Zip Motion Blocks Video encoder
499 - Flash Screen Video encoder
500 - Theora encoding via libtheora
503 - GSM-MS encoder and decoder
505 - DXA demuxer and decoder
507 - Gamecube movie (.THP) playback system
508 - Blackfin optimizations
509 - Interplay C93 demuxer and video decoder
510 - Bethsoft VID demuxer and video decoder
513 - V.Flash PTX decoder
514 - RoQ muxer, RoQ audio encoder
515 - Renderware TXD demuxer and decoder
516 - extern C declarations for C++ removed from headers
517 - sws_flags command line option
521 - OS/2 support removed and restored again
524 - additional SPARC (VIS) optimizations
526 - slice-based parallel H.264 decoding
527 - Monkey's Audio demuxer and decoder
528 - AMV audio and video decoder
530 - H.264 PAFF decoding
531 - Nellymoser ASAO decoder
532 - Beam Software SIFF demuxer and decoder
533 - libvorbis Vorbis decoding removed in favor of native decoder
534 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
535 - Ogg (Theora, Vorbis and FLAC) muxer
536 - The "device" muxers and demuxers are now in a new libavdevice library
537 - PC Paintbrush PCX decoder
538 - Sun Rasterfile decoder
539 - TechnoTrend PVA demuxer
540 - Linux Media Labs MPEG-4 (LMLM4) demuxer
541 - AVM2 (Flash 9) SWF muxer
542 - QT variant of IMA ADPCM encoder
544 - iPod/iPhone compatible mp4 muxer
546 - MSN TCP Webcam stream demuxer
547 - RL2 demuxer / decoder
550 - non-recursive Makefiles
552 - MAXIS EA XA (.xa) demuxer / decoder
556 - Electronic Arts CMV decoder
557 - Motion Pixels Video decoder
558 - Motion Pixels MVI demuxer
559 - removed animated GIF decoder/demuxer
560 - D-Cinema audio muxer
561 - Electronic Arts TGV decoder
562 - Apple Lossless Audio Codec (ALAC) encoder
564 - floating point PCM encoder/decoder
566 - DV100 AKA DVCPRO HD decoder and demuxer
567 - E-AC-3 support added to AC-3 decoder
568 - Nellymoser ASAO encoder
569 - ASS and SSA demuxer and muxer
570 - liba52 wrapper removed
571 - SVQ3 watermark decoding support
572 - Speex decoding via libspeex
573 - Electronic Arts TGQ decoder
575 - QCELP / PureVoice decoder
577 - hybrid WavPack support
578 - R3D REDCODE demuxer
579 - ALSA support for playback and record
580 - Electronic Arts TQI decoder
581 - OpenJPEG based JPEG 2000 decoder
582 - NC (NC4600) camera file demuxer
583 - Gopher client support
585 - generic metadata API
590 - DV encoder, DV muxer
591 - Microsoft RLE video decoder
592 - Microsoft Video-1 decoder
593 - Apple Animation (RLE) decoder
594 - Apple Graphics (SMC) decoder
595 - Apple Video (RPZA) decoder
597 - Sega FILM (CPK) file demuxer
598 - Westwood multimedia support (VQA & AUD files)
599 - Id Quake II CIN playback support
601 - FLIC playback support
602 - RealVideo 2.0 (RV20) decoder
603 - Duck TrueMotion v1 (DUCK) video decoder
604 - Sierra VMD demuxer and video decoder
605 - MSZH and ZLIB decoder support
609 - rate distortion optimal cbp support
610 - rate distorted optimal ac prediction for MPEG-4
611 - rate distorted optimal lambda->qp support
612 - AAC encoding with libfaac
613 - Sunplus JPEG codec (SP5X) support
614 - use Lagrange multipler instead of QP for ratecontrol
615 - Theora/VP3 decoding support
616 - XA and ADX ADPCM codecs
617 - export MPEG-2 active display area / pan scan
618 - Add support for configuring with IBM XLC
619 - floating point AAN DCT
620 - initial support for zygo video (not complete)
622 - new audio/video parser API
624 - av_read_frame() and av_seek_frame() support
625 - missing last frame fixes
626 - seek by mouse in ffplay
627 - noise reduction of DCT coefficients
628 - H.263 OBMC & 4MV support
629 - H.263 alternative inter vlc support
631 - H.263 slice structured mode
632 - interlaced DCT support for MPEG-2 encoding
633 - stuffing to stay above min_bitrate
634 - MB type & QP visualization
635 - frame stepping for ffplay
636 - interlaced motion estimation
637 - alternate scantable support
638 - SVCD scan offset support
641 - quantizer noise shaping
642 - G.726 ADPCM audio codec
644 - multithreaded/SMP motion estimation
645 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
646 - multithreaded/SMP decoding for MPEG-2
648 - Metrowerks CodeWarrior suppport
649 - H.263+ custom pcf support
650 - nicer output for 'ffmpeg -formats'
652 - SGI image format, encoding and decoding
653 - H.264 loop filter support
654 - H.264 CABAC support
655 - nicer looking arrows for the motion vector visualization
656 - improved VCD support
657 - audio timestamp drift compensation
658 - MPEG-2 YUV 422/444 support
659 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
660 - better image scaling
662 - correctly interleave packets during encoding
663 - VIS optimized motion compensation
664 - intra_dc_precision>0 encoding support
665 - support reuse of motion vectors/MB types/field select values of the source video
666 - more accurate deblock filter
668 - many optimizations and bugfixes
669 - FunCom ISS audio file demuxer and according ADPCM decoding
674 - MPEG-2 video encoding (Michael)
675 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
676 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
678 - Xan DPCM audio decoder (Mario Brito)
679 - Interplay MVE playback subsystem (Mike Melanson)
680 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
685 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
686 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
687 - current version now also compiles with older GCC (Fabrice)
688 - 4X multimedia playback system including 4xm file demuxer (Mike
689 Melanson), and 4X video and audio codecs (Michael)
690 - Creative YUV (CYUV) decoder (Mike Melanson)
691 - FFV1 codec (our very simple lossless intra only codec, compresses much better
692 than HuffYUV) (Michael)
693 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
694 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
695 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
696 - ffplay has been replaced with a newer version which uses SDL (optionally)
697 for multiplatform support (Fabrice)
698 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
700 - AMR format has been added (Johannes Carlsson)
701 - 3GP support has been added (Johannes Carlsson)
702 - VP3 codec has been added (Mike Melanson)
703 - more MPEG-1/2 fixes
704 - better multiplatform support, MS Visual Studio fixes (various)
705 - AltiVec optimizations (Magnus Damn and others)
706 - SH4 processor support has been added (BERO)
707 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
708 - VOB streaming support (Brian Foley)
709 - better MP3 autodetection (Andriy Rysin)
710 - qpel encoding (Michael)
711 - 4mv+b frames encoding finally fixed (Michael)
712 - chroma ME (Michael)
713 - 5 comparison functions for ME (Michael)
714 - B-frame encoding speedup (Michael)
715 - WMV2 codec (unfinished - Michael)
716 - user specified diamond size for EPZS (Michael)
717 - Playstation STR playback subsystem, still experimental (Mike and Michael)
718 - ASV2 codec (Michael)
719 - CLJR decoder (Alex)
721 .. And lots more new enhancements and fixes.
726 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
728 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
729 - fix quantization bug in AC3 encoder
730 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
731 - added prototype ffplay program
732 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
733 - bug fix on MCBPC tables of H.263 (Juanjo)
734 - bug fix on DC coefficients of H.263 (Juanjo)
735 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
736 - now we can decode H.263 streams found in QuickTime files (Juanjo)
737 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
738 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
739 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
740 - now H.263 picture size is returned on the first decoded frame (Juanjo)
741 - added first regression tests
742 - added MPEG-2 TS demuxer
743 - new demux API for libav
744 - more accurate and faster IDCT (Michael)
745 - faster and entropy-controlled motion search (Michael)
746 - two pass video encoding (Michael)
747 - new video rate control (Michael)
748 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
749 - great performance improvement of video encoders and decoders (Michael)
750 - new and faster bit readers and vlc parsers (Michael)
751 - high quality encoding mode: tries all macroblock/VLC types (Michael)
752 - added DV video decoder
753 - preliminary RTP/RTSP support in ffserver and libavformat
754 - H.263+ AIC decoding/encoding support (Juanjo)
755 - VCD MPEG-PS mode (Juanjo)
756 - PSNR stuff (Juanjo)
757 - simple stats output (Juanjo)
758 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
763 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
764 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
765 - added configure system (actually a small shell script)
766 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
767 Michael Hipp (temporary solution - waiting for integer only
769 - fixed VIDIOCSYNC interrupt
770 - added Intel H.263 decoding support ('I263' AVI fourCC)
771 - added Real Video 1.0 decoding (needs further testing)
772 - simplified image formats again. Added PGM format (=grey
773 pgm). Renamed old PGM to PGMYUV.
774 - fixed msmpeg4 slice issues (tell me if you still find problems)
775 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
776 - added support for MPlayer interface
777 - added macroblock skip optimization
778 - added MJPEG decoder
779 - added mmx/mmxext IDCT from libmpeg2
780 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
781 <celer at shell.scrypt.net>)
782 - added pixel format conversion layer (e.g. for MJPEG or PPM)
783 - added deinterlacing option
785 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
786 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
787 - Windows porting of file converter
788 - added MJPEG raw format (input/ouput)
789 - added JPEG image format support (input/output)
794 - fixed some std header definitions (Bjorn Lindgren
795 <bjorn.e.lindgren at telia.com>).
796 - added MPEG demuxer (MPEG-1 and 2 compatible).
798 - added prototype RM demuxer
799 - added AC3 decoding (done with libac3 by Aaron Holtzman)
800 - added decoding codec parameter guessing (.e.g. for MPEG, because the
801 header does not include them)
802 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
803 play them (only tested video)
804 - fixed H.263 white bug
805 - fixed phase rounding in img resample filter
806 - add MMX code for polyphase img resample filter
807 - added CPU autodetection
808 - added generic title/author/copyright/comment string handling (ASF and RM
810 - added SWF demux to extract MP3 track (not usable yet because no MP3
812 - added fractional frame rate support
813 - codecs are no longer searched by read_header() (should fix ffserver
819 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
820 - fixed raw yuv output
821 - added motion rounding support in MPEG-4
822 - fixed motion bug rounding in MSMPEG4
823 - added B-frame handling in video core
824 - added full MPEG-1 decoding support
825 - added partial (frame only) MPEG-2 support
826 - changed the FOURCC code for H.263 to "U263" to be able to see the
827 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
828 this +codec ;) (JuanJo).
829 - Halfpel motion estimation after MB type selection (JuanJo)
830 - added pgm and .Y.U.V output format
831 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
833 - added pgmpipe I/O format (original patch from Martin Aumueller
834 <lists at reserv.at>, but changed completely since we use a format
835 instead of a protocol)
840 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
841 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
842 missing. MSMPEG4 support is complete.
843 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
844 can decode ffmpeg MPEGs :-)).
845 - added libavcodec API documentation (see apiexample.c).
846 - fixed image polyphase bug (the bottom of some images could be
848 - added support for non clipped motion vectors (decoding only)
849 and image sizes non-multiple of 16
850 - added support for AC prediction (decoding only)
851 - added file overwrite confirmation (can be disabled with -y)
852 - added custom size picture to H.263 using H.263+ (Juanjo)
857 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
858 of AVI and ASF to DIV3.
859 - added -me option to set motion estimation method
860 (default=log). suppressed redundant -hq option.
861 - added options -acodec and -vcodec to force a given codec (useful for
864 - improved dct_quantize speed
865 - factorized some motion estimation code
870 - removing grab code from ffserver and moved it to ffmpeg. Added
871 multistream support to ffmpeg.
872 - added timeshifting support for live feeds (option ?date=xxx in the
874 - added high quality image resize code with polyphase filter (need
875 mmx/see optimization). Enable multiple image size support in ffserver.
876 - added multi live feed support in ffserver
877 - suppressed master feature from ffserver (it should be done with an
878 external program which opens the .ffm url and writes it to another
880 - added preliminary support for video stream parsing (WAV and AVI half
881 done). Added proper support for audio/video file conversion in
883 - added preliminary support for video file sending from ffserver
884 - redesigning I/O subsystem: now using URL based input and output
886 - added WAV format support
887 - added "tty user interface" to ffmpeg to stop grabbing gracefully
888 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
889 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
890 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
891 - added new motion estimation algorithms, log and phods (Juanjo)
892 - changed directories: libav for format handling, libavcodec for
898 - added stereo in MPEG audio encoder
903 - added 'high quality' mode which use motion vectors. It can be used in
904 real time at low resolution.
905 - fixed rounding problems which caused quality problems at high
906 bitrates and large GOP size
909 version 0.3.2: small fixes
915 version 0.3.1: added avi/divx support
918 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
919 - added sound for flash format (not tested)
922 version 0.3: initial public release